WO1994021347A1 - Procede de traitement d'eau - Google Patents

Procede de traitement d'eau Download PDF

Info

Publication number
WO1994021347A1
WO1994021347A1 PCT/CA1994/000165 CA9400165W WO9421347A1 WO 1994021347 A1 WO1994021347 A1 WO 1994021347A1 CA 9400165 W CA9400165 W CA 9400165W WO 9421347 A1 WO9421347 A1 WO 9421347A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
water
sorbent
process according
contaminant
Prior art date
Application number
PCT/CA1994/000165
Other languages
English (en)
Inventor
Zdzislaw Janusz Kozlowski
Original Assignee
E.R.T. Environmental Research Technology K.S.P.W. Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by E.R.T. Environmental Research Technology K.S.P.W. Inc. filed Critical E.R.T. Environmental Research Technology K.S.P.W. Inc.
Priority to AU63500/94A priority Critical patent/AU6350094A/en
Publication of WO1994021347A1 publication Critical patent/WO1994021347A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/681—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of solid materials for removing an oily layer on water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds

Definitions

  • the particulate solid liquid sorbent is readily separable from the absorbed liquid, and reusable.
  • the solid sorbent comprises a particulate polyurethane liquid sorbent prepared by a process comprising :

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

Procédé de récupération de petites quantités de contaminants liquides de l'eau, ces contaminants se présentant sous forme d'un soluté ou de la phase dispersée d'une émulsion. Le procédé consiste à mettre en contact, par un procédé de mélange, l'eau contaminée avec un quantité efficace d'un agent de sorption liquide particulaire à base de polyuréthane. L'agent de sorption est extrait de l'eau, généralement par une simple étape de filtration. S'il est nécessaire, l'eau peut être traitée plusieurs fois. Le liquide contaminant récupéré peut être séparé de l'agent de sorption par une étape de centrifugation, et ce dernier peut être réutilisé. De manière typique, la teneur en hydrocarbure d'une eau contenant 10 % de carburant Diesel émulsifié peut être réduite à un niveau inférieur à 200 ppm en un seul traitement.
PCT/CA1994/000165 1993-03-22 1994-03-22 Procede de traitement d'eau WO1994021347A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU63500/94A AU6350094A (en) 1993-03-22 1994-03-22 Water treatment process

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US3537193A 1993-03-22 1993-03-22
US035,371 1993-03-22
US8347293A 1993-06-30 1993-06-30
US083,472 1993-06-30

Publications (1)

Publication Number Publication Date
WO1994021347A1 true WO1994021347A1 (fr) 1994-09-29

Family

ID=26712045

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1994/000165 WO1994021347A1 (fr) 1993-03-22 1994-03-22 Procede de traitement d'eau

Country Status (4)

Country Link
AU (1) AU6350094A (fr)
GB (1) GB2276373A (fr)
MX (1) MXPA94002088A (fr)
WO (1) WO1994021347A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002020115A2 (fr) * 2000-09-07 2002-03-14 Earth (Canada) Corporation Unite de desemulsification d'huile, constituee de polyurethanne
US7727628B2 (en) 2004-01-15 2010-06-01 Torr Canada, Inc. Reusable sorbing coalescing agent

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPN311395A0 (en) * 1995-05-23 1995-06-15 Arthur, Ronald William An apparatus and method for the effective separation of oil and water from oil/water mixtures

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1526159A (fr) * 1967-04-10 1968-05-24 Salpa Soc Procédé pour enlever les hydrocarbures ou autres liquides de densité inférieure à 1 flottant sur l'eau et les récupérer
EP0013412A2 (fr) * 1979-01-15 1980-07-23 BASF Aktiengesellschaft Procédé pour la séparation de liquides organiques hydrophobes de l'eau
WO1993012878A1 (fr) * 1991-12-31 1993-07-08 E.R.T. Environmental Research Technology K.S.P.W. Inc. Substance absorbant les liquides

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1526159A (fr) * 1967-04-10 1968-05-24 Salpa Soc Procédé pour enlever les hydrocarbures ou autres liquides de densité inférieure à 1 flottant sur l'eau et les récupérer
EP0013412A2 (fr) * 1979-01-15 1980-07-23 BASF Aktiengesellschaft Procédé pour la séparation de liquides organiques hydrophobes de l'eau
WO1993012878A1 (fr) * 1991-12-31 1993-07-08 E.R.T. Environmental Research Technology K.S.P.W. Inc. Substance absorbant les liquides

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002020115A2 (fr) * 2000-09-07 2002-03-14 Earth (Canada) Corporation Unite de desemulsification d'huile, constituee de polyurethanne
WO2002020115A3 (fr) * 2000-09-07 2002-09-06 Earth Canada Corp Unite de desemulsification d'huile, constituee de polyurethanne
US7416667B2 (en) 2000-09-07 2008-08-26 Prosep Inc. Polyurethane oil de-emulsification unit
US8721895B2 (en) 2000-09-07 2014-05-13 Amine Benachenou Polyurethane oil de-emulsification unit
US7727628B2 (en) 2004-01-15 2010-06-01 Torr Canada, Inc. Reusable sorbing coalescing agent

Also Published As

Publication number Publication date
GB9405107D0 (en) 1994-03-27
GB2276373A (en) 1994-09-28
AU6350094A (en) 1994-10-11
MXPA94002088A (es) 2005-07-15

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